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Some results on dominant operators. (English) Zbl 0911.47011

Summary: We show that the Weyl spectrum of a dominant operator satisfies the spectral mapping theorem for analytic functions and then answer a question of Oberai.

MSC:

47A10 Spectrum, resolvent
47A53 (Semi-) Fredholm operators; index theories
47B20 Subnormal operators, hyponormal operators, etc.
47A60 Functional calculus for linear operators
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